Improvement in tenoning-machines



UNITED STATES PATENT OFFICE.

LAWRENCE MASON, OF TURIN, NEW YORK.

S p eci ication forming To all whom it may concern:

Be it known that l, LAWRENCE MASON, of Turin,in the .county ot Lewis and State of New York, have invented certain new and useful Improvements in Tenoning-Machines; and I do hereby declare the following to be a full, clear, and exact description of the nature, construction, and operation of the same, reference being had to the accompanyingdrawings, which are made part of this specification, and in which- Figure 3 is a front eleva the tenoning devices, and Fig. 4L is a side elevation of the devices shown in Fig. 3.

Similar letters of reference illustrate corresponding parts in the diiferent figures.

The subject ot' this invention is a tenoningmachine with a novelarrangement .of devices for actuating and gaging the tenoning saws and chisels.

In order that others skilled in the art to which said invention appertains may be enabled to fully understand and use the'samc, I will proceed to describe it in detail in connection with the accompanying drawings.

Tenoningapparatus is shown in Figs. 3 and 4.

Bit represents a vertically reciprocating frame or gate, which moves within the guides Ott Ott, att-ached to the main frame. In this frame 4Bit are mounted the parallel bars Dit Dit, the ends of which fit within suitable guideways btt bi" at the top and bottom of the frame Bit.

Ett Eit represent s tion illustrating prings which are fixed to the frame Bit, so as to bear against the bars Dit Dit, for the purpose of exerting a constant pressure upon said bars, and thus keep the saws Fit .Fit and cutters Git Git properly up to their work.

The saws and cutters are attached to and move with the bars Dit Dit, which rise and fall with the frame Bit. The. saws cut against the grain of the wood and form the shoulders of the tenon, while the cutters, whose action is subsequent to that of the saws7 cut with the grain of the wood and form the sides of the tenon.

The stuff is fed tothe action ot' the saws 4 and cutters upon the adjustable guide Iit, which can be raised up into the inclined position represented, so as to cause the stuff to be fed to the saws in such a way that they shall bevel the shoulders of the tenon when desired. For this purpose any degree of inclination may be given to the guide Itt by the arm J t on the shaft Kit, which is turned by the crank? part of Letters Patent No. 54,749, dated May 15, 1866.

handle Lit and held i it may be turned by nut, Mit.

Hit is a lever which may against the contiguous edges of the bars Dit Dit, so as to force said bars, with the saws and cutters, a suflicient distance asunder to permit the stuft' to be introduced between 'them preparatory to the depressing of the frame to form the tenon. When released by the lever Hit the bars, saws, and cutters are brought together by the springs Eit Eit.

The space between the bars Dit Dit, when under the action of the springs Eit and released by the lever Hit, is gagedby means of small levers or tappets itt itt, (seen in dotted lines in Fig. 3,) which are each turned upon a fulcrum between the adjacent ends of thc bars Dit Dslt by a slotted arm, Nit, which has a nut, Ott, whereby it is retained in any position to suit the adjustment of Hence it will be seen that the adjustment of the tappets it gages the saws and cutters, and thus determines the size of the tenon.

I propose to substitute wedges or keys for the tappets Ihe guide lit may be moved laterally upon the table Iit by the scrcwshaft Pit, which works through the socketed end of the guide lit. This lateral adjustment ofthe guide is made when it is desired to chan ge the position of the tenon or submit the work to the action of a single saw and cutter alone, as the nature of the work occasionally requires.

Qt is an adjustable lever which bears down upon the stuft while being operated upon, and is held in the teeth of the rack The frame or gate is operated by means ofa treadle-lever, Stt,which is linked to a spring, Tit, whereby the ineffective movement of the lever is produced.

The force of the spring Tit may be any requisite extent by the slide Uit Having thus descri I claim as new, and ters Patent, is

The arrangement of the verticall frame Bit Bit, adjustable bars Dit springs Ett Eit, saws Fit Ftt gaged by means of n any position to which means of an eyebolt and be brought to bear varied to bed my invention, what desire to secure Vby Let y-moving Dit, and cutters Git Git, the tappets it it and arms Nit, operating substantially as described and represented.

Witnesses: LAWRENCE MASON.

ALEX. A. C. KLAUCEE,

CEAS.. D. SMITH. 

